Transformation of oblique image due to camera angulation

Good day all,

Could someone please help me on how to transform my image from oblique to perpendicular plane?

My camera is mounted at an angle and captured image of a phantom in oblique dimension. I extrated image of a ROI on the top flat surface of the phatom but the image looks oblique (higher pixel values at the top rows) insted of flat (approximately the same pixel values throughout the image).

Please is there any way I can transform the image to look as if the camera is perpendicular to it, showing flat surface)?

Many thanks.

subplot(1,2,1);imagesc(FOV);colorbar
subplot(1,2,2);imagesc(ROI);colorbar

Answer 1

[Image Analyst]

See Steve's blog:

Spatial transformations Defining and applying custom transforms Steve on Image Processing

[AUWAL ABUBAKAR]

Thanks for your help.